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examples: fix and vfmt cube_glsl example

pull/8805/head
Alexander Medvednikov 2021-02-17 06:47:41 +01:00
parent d4a05bebde
commit 60a8881326
1 changed files with 242 additions and 225 deletions
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examples/sokol/02_cubes_glsl/cube_glsl.v
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@ -32,8 +32,7 @@
**********************************************************************/ **********************************************************************/
import gg import gg
import gx import gx
//import math // import math
import sokol.sapp import sokol.sapp
import sokol.gfx import sokol.gfx
import sokol.sgl import sokol.sgl
@ -43,6 +42,7 @@ import gg.m4
// GLSL Include and functions // GLSL Include and functions
#flag -I @VROOT/. #flag -I @VROOT/.
#include "cube_glsl.h" #Please use sokol-shdc to generate the necessary cube_glsl.h file from cube_glsl.glsl (see the instructions at the top of this file) #include "cube_glsl.h" #Please use sokol-shdc to generate the necessary cube_glsl.h file from cube_glsl.glsl (see the instructions at the top of this file)
fn C.cube_shader_desc() &C.sg_shader_desc fn C.cube_shader_desc() &C.sg_shader_desc
const ( const (
@ -53,21 +53,18 @@ const (
struct App { struct App {
mut: mut:
gg &gg.Context gg &gg.Context
pip_3d C.sgl_pipeline pip_3d C.sgl_pipeline
texture C.sg_image texture C.sg_image
init_flag bool init_flag bool
frame_count int frame_count int
mouse_x int = -1
mouse_x int = -1 mouse_y int = -1
mouse_y int = -1
// glsl // glsl
cube_pip_glsl C.sg_pipeline cube_pip_glsl C.sg_pipeline
cube_bind C.sg_bindings cube_bind C.sg_bindings
// time // time
ticks i64 ticks i64
} }
/****************************************************************************** /******************************************************************************
@ -75,15 +72,15 @@ mut:
* Texture functions * Texture functions
* *
******************************************************************************/ ******************************************************************************/
fn create_texture(w int, h int, buf byteptr) C.sg_image{ fn create_texture(w int, h int, buf byteptr) C.sg_image {
sz := w * h * 4 sz := w * h * 4
mut img_desc := C.sg_image_desc{ mut img_desc := C.sg_image_desc{
width: w width: w
height: h height: h
num_mipmaps: 0 num_mipmaps: 0
min_filter: .linear min_filter: .linear
mag_filter: .linear mag_filter: .linear
//usage: .dynamic // usage: .dynamic
wrap_u: .clamp_to_edge wrap_u: .clamp_to_edge
wrap_v: .clamp_to_edge wrap_v: .clamp_to_edge
label: &byte(0) label: &byte(0)
@ -99,15 +96,15 @@ fn create_texture(w int, h int, buf byteptr) C.sg_image{
return sg_img return sg_img
} }
fn destroy_texture(sg_img C.sg_image){ fn destroy_texture(sg_img C.sg_image) {
C.sg_destroy_image(sg_img) C.sg_destroy_image(sg_img)
} }
// Use only if usage: .dynamic is enabled // Use only if usage: .dynamic is enabled
fn update_text_texture(sg_img C.sg_image, w int, h int, buf byteptr){ fn update_text_texture(sg_img C.sg_image, w int, h int, buf byteptr) {
sz := w * h * 4 sz := w * h * 4
mut tmp_sbc := C.sg_image_content{} mut tmp_sbc := C.sg_image_content{}
tmp_sbc.subimage[0][0] = C.sg_subimage_content { tmp_sbc.subimage[0][0] = C.sg_subimage_content{
ptr: buf ptr: buf
size: sz size: sz
} }
@ -122,9 +119,9 @@ fn update_text_texture(sg_img C.sg_image, w int, h int, buf byteptr){
fn draw_triangle() { fn draw_triangle() {
sgl.defaults() sgl.defaults()
sgl.begin_triangles() sgl.begin_triangles()
sgl.v2f_c3b( 0.0, 0.5, 255, 0, 0) sgl.v2f_c3b(0.0, 0.5, 255, 0, 0)
sgl.v2f_c3b(-0.5, -0.5, 0, 0, 255) sgl.v2f_c3b(-0.5, -0.5, 0, 0, 255)
sgl.v2f_c3b( 0.5, -0.5, 0, 255, 0) sgl.v2f_c3b(0.5, -0.5, 0, 255, 0)
sgl.end() sgl.end()
} }
@ -133,43 +130,43 @@ fn cube() {
sgl.begin_quads() sgl.begin_quads()
// edge color // edge color
sgl.c3f(1.0, 0.0, 0.0) sgl.c3f(1.0, 0.0, 0.0)
// edge coord // edge coord
// x,y,z, texture cord: u,v // x,y,z, texture cord: u,v
sgl.v3f_t2f(-1.0, 1.0, -1.0, -1.0, 1.0) sgl.v3f_t2f(-1.0, 1.0, -1.0, -1.0, 1.0)
sgl.v3f_t2f( 1.0, 1.0, -1.0, 1.0, 1.0) sgl.v3f_t2f(1.0, 1.0, -1.0, 1.0, 1.0)
sgl.v3f_t2f( 1.0, -1.0, -1.0, 1.0, -1.0) sgl.v3f_t2f(1.0, -1.0, -1.0, 1.0, -1.0)
sgl.v3f_t2f(-1.0, -1.0, -1.0, -1.0, -1.0) sgl.v3f_t2f(-1.0, -1.0, -1.0, -1.0, -1.0)
sgl.c3f(0.0, 1.0, 0.0) sgl.c3f(0.0, 1.0, 0.0)
sgl.v3f_t2f(-1.0, -1.0, 1.0, -1.0, 1.0) sgl.v3f_t2f(-1.0, -1.0, 1.0, -1.0, 1.0)
sgl.v3f_t2f( 1.0, -1.0, 1.0, 1.0, 1.0) sgl.v3f_t2f(1.0, -1.0, 1.0, 1.0, 1.0)
sgl.v3f_t2f( 1.0, 1.0, 1.0, 1.0, -1.0) sgl.v3f_t2f(1.0, 1.0, 1.0, 1.0, -1.0)
sgl.v3f_t2f(-1.0, 1.0, 1.0, -1.0, -1.0) sgl.v3f_t2f(-1.0, 1.0, 1.0, -1.0, -1.0)
sgl.c3f(0.0, 0.0, 1.0) sgl.c3f(0.0, 0.0, 1.0)
sgl.v3f_t2f(-1.0, -1.0, 1.0, -1.0, 1.0) sgl.v3f_t2f(-1.0, -1.0, 1.0, -1.0, 1.0)
sgl.v3f_t2f(-1.0, 1.0, 1.0, 1.0, 1.0) sgl.v3f_t2f(-1.0, 1.0, 1.0, 1.0, 1.0)
sgl.v3f_t2f(-1.0, 1.0, -1.0, 1.0, -1.0) sgl.v3f_t2f(-1.0, 1.0, -1.0, 1.0, -1.0)
sgl.v3f_t2f(-1.0, -1.0, -1.0, -1.0, -1.0) sgl.v3f_t2f(-1.0, -1.0, -1.0, -1.0, -1.0)
sgl.c3f(1.0, 0.5, 0.0) sgl.c3f(1.0, 0.5, 0.0)
sgl.v3f_t2f(1.0, -1.0, 1.0, -1.0, 1.0) sgl.v3f_t2f(1.0, -1.0, 1.0, -1.0, 1.0)
sgl.v3f_t2f(1.0, -1.0, -1.0, 1.0, 1.0) sgl.v3f_t2f(1.0, -1.0, -1.0, 1.0, 1.0)
sgl.v3f_t2f(1.0, 1.0, -1.0, 1.0, -1.0) sgl.v3f_t2f(1.0, 1.0, -1.0, 1.0, -1.0)
sgl.v3f_t2f(1.0, 1.0, 1.0, -1.0, -1.0) sgl.v3f_t2f(1.0, 1.0, 1.0, -1.0, -1.0)
sgl.c3f(0.0, 0.5, 1.0) sgl.c3f(0.0, 0.5, 1.0)
sgl.v3f_t2f( 1.0, -1.0, -1.0, -1.0, 1.0) sgl.v3f_t2f(1.0, -1.0, -1.0, -1.0, 1.0)
sgl.v3f_t2f( 1.0, -1.0, 1.0, 1.0, 1.0) sgl.v3f_t2f(1.0, -1.0, 1.0, 1.0, 1.0)
sgl.v3f_t2f(-1.0, -1.0, 1.0, 1.0, -1.0) sgl.v3f_t2f(-1.0, -1.0, 1.0, 1.0, -1.0)
sgl.v3f_t2f(-1.0, -1.0, -1.0, -1.0, -1.0) sgl.v3f_t2f(-1.0, -1.0, -1.0, -1.0, -1.0)
sgl.c3f(1.0, 0.0, 0.5) sgl.c3f(1.0, 0.0, 0.5)
sgl.v3f_t2f(-1.0, 1.0, -1.0, -1.0, 1.0) sgl.v3f_t2f(-1.0, 1.0, -1.0, -1.0, 1.0)
sgl.v3f_t2f(-1.0, 1.0, 1.0, 1.0, 1.0) sgl.v3f_t2f(-1.0, 1.0, 1.0, 1.0, 1.0)
sgl.v3f_t2f( 1.0, 1.0, 1.0, 1.0, -1.0) sgl.v3f_t2f(1.0, 1.0, 1.0, 1.0, -1.0)
sgl.v3f_t2f( 1.0, 1.0, -1.0, -1.0, -1.0) sgl.v3f_t2f(1.0, 1.0, -1.0, -1.0, -1.0)
sgl.end() sgl.end()
} }
fn draw_cubes(app App) { fn draw_cubes(app App) {
rot := [f32(1.0)*(app.frame_count % 360), 0.5*f32(app.frame_count%360)] rot := [f32(1.0) * (app.frame_count % 360), 0.5 * f32(app.frame_count % 360)]
//rot := [f32(app.mouse_x), f32(app.mouse_y)] // rot := [f32(app.mouse_x), f32(app.mouse_y)]
sgl.defaults() sgl.defaults()
sgl.load_pipeline(app.pip_3d) sgl.load_pipeline(app.pip_3d)
@ -183,61 +180,61 @@ fn draw_cubes(app App) {
sgl.rotate(sgl.rad(rot[1]), 0.0, 1.0, 0.0) sgl.rotate(sgl.rad(rot[1]), 0.0, 1.0, 0.0)
cube() cube()
sgl.push_matrix() sgl.push_matrix()
sgl.translate(0.0, 0.0, 3.0) sgl.translate(0.0, 0.0, 3.0)
sgl.scale(0.5, 0.5, 0.5) sgl.scale(0.5, 0.5, 0.5)
sgl.rotate(-2.0 * sgl.rad(rot[0]), 1.0, 0.0, 0.0) sgl.rotate(-2.0 * sgl.rad(rot[0]), 1.0, 0.0, 0.0)
sgl.rotate(-2.0 * sgl.rad(rot[1]), 0.0, 1.0, 0.0) sgl.rotate(-2.0 * sgl.rad(rot[1]), 0.0, 1.0, 0.0)
cube() cube()
sgl.push_matrix() sgl.push_matrix()
sgl.translate(0.0, 0.0, 3.0) sgl.translate(0.0, 0.0, 3.0)
sgl.scale(0.5, 0.5, 0.5) sgl.scale(0.5, 0.5, 0.5)
sgl.rotate(-3.0 * sgl.rad(2*rot[0]), 1.0, 0.0, 0.0) sgl.rotate(-3.0 * sgl.rad(2 * rot[0]), 1.0, 0.0, 0.0)
sgl.rotate(3.0 * sgl.rad(2*rot[1]), 0.0, 0.0, 1.0) sgl.rotate(3.0 * sgl.rad(2 * rot[1]), 0.0, 0.0, 1.0)
cube() cube()
sgl.pop_matrix() sgl.pop_matrix()
sgl.pop_matrix() sgl.pop_matrix()
} }
fn cube_texture(r f32,g f32,b f32) { fn cube_texture(r f32, g f32, b f32) {
sgl.begin_quads() sgl.begin_quads()
// edge color // edge color
sgl.c3f(r, g, b) sgl.c3f(r, g, b)
// edge coord // edge coord
// x,y,z, texture cord: u,v // x,y,z, texture cord: u,v
sgl.v3f_t2f(-1.0, 1.0, -1.0, 0.0 , 0.25) sgl.v3f_t2f(-1.0, 1.0, -1.0, 0.0, 0.25)
sgl.v3f_t2f( 1.0, 1.0, -1.0, 0.25, 0.25) sgl.v3f_t2f(1.0, 1.0, -1.0, 0.25, 0.25)
sgl.v3f_t2f( 1.0, -1.0, -1.0, 0.25, 0.0 ) sgl.v3f_t2f(1.0, -1.0, -1.0, 0.25, 0.0)
sgl.v3f_t2f(-1.0, -1.0, -1.0, 0.0 , 0.0 ) sgl.v3f_t2f(-1.0, -1.0, -1.0, 0.0, 0.0)
sgl.c3f(r, g, b) sgl.c3f(r, g, b)
sgl.v3f_t2f(-1.0, -1.0, 1.0, 0.0 , 0.25) sgl.v3f_t2f(-1.0, -1.0, 1.0, 0.0, 0.25)
sgl.v3f_t2f( 1.0, -1.0, 1.0, 0.25, 0.25) sgl.v3f_t2f(1.0, -1.0, 1.0, 0.25, 0.25)
sgl.v3f_t2f( 1.0, 1.0, 1.0, 0.25, 0.0 ) sgl.v3f_t2f(1.0, 1.0, 1.0, 0.25, 0.0)
sgl.v3f_t2f(-1.0, 1.0, 1.0, 0.0 , 0.0 ) sgl.v3f_t2f(-1.0, 1.0, 1.0, 0.0, 0.0)
sgl.c3f(r, g, b) sgl.c3f(r, g, b)
sgl.v3f_t2f(-1.0, -1.0, 1.0, 0.0 , 0.25) sgl.v3f_t2f(-1.0, -1.0, 1.0, 0.0, 0.25)
sgl.v3f_t2f(-1.0, 1.0, 1.0, 0.25, 0.25) sgl.v3f_t2f(-1.0, 1.0, 1.0, 0.25, 0.25)
sgl.v3f_t2f(-1.0, 1.0, -1.0, 0.25, 0.0 ) sgl.v3f_t2f(-1.0, 1.0, -1.0, 0.25, 0.0)
sgl.v3f_t2f(-1.0, -1.0, -1.0, 0.0 , 0.0 ) sgl.v3f_t2f(-1.0, -1.0, -1.0, 0.0, 0.0)
sgl.c3f(r, g, b) sgl.c3f(r, g, b)
sgl.v3f_t2f(1.0, -1.0, 1.0, 0.0 , 0.25) sgl.v3f_t2f(1.0, -1.0, 1.0, 0.0, 0.25)
sgl.v3f_t2f(1.0, -1.0, -1.0, 0.25, 0.25) sgl.v3f_t2f(1.0, -1.0, -1.0, 0.25, 0.25)
sgl.v3f_t2f(1.0, 1.0, -1.0, 0.25, 0.0 ) sgl.v3f_t2f(1.0, 1.0, -1.0, 0.25, 0.0)
sgl.v3f_t2f(1.0, 1.0, 1.0, 0.0 , 0.0 ) sgl.v3f_t2f(1.0, 1.0, 1.0, 0.0, 0.0)
sgl.c3f(r, g, b) sgl.c3f(r, g, b)
sgl.v3f_t2f( 1.0, -1.0, -1.0, 0.0 , 0.25) sgl.v3f_t2f(1.0, -1.0, -1.0, 0.0, 0.25)
sgl.v3f_t2f( 1.0, -1.0, 1.0, 0.25, 0.25) sgl.v3f_t2f(1.0, -1.0, 1.0, 0.25, 0.25)
sgl.v3f_t2f(-1.0, -1.0, 1.0, 0.25, 0.0 ) sgl.v3f_t2f(-1.0, -1.0, 1.0, 0.25, 0.0)
sgl.v3f_t2f(-1.0, -1.0, -1.0, 0.0 , 0.0 ) sgl.v3f_t2f(-1.0, -1.0, -1.0, 0.0, 0.0)
sgl.c3f(r, g, b) sgl.c3f(r, g, b)
sgl.v3f_t2f(-1.0, 1.0, -1.0, 0.0 , 0.25) sgl.v3f_t2f(-1.0, 1.0, -1.0, 0.0, 0.25)
sgl.v3f_t2f(-1.0, 1.0, 1.0, 0.25, 0.25) sgl.v3f_t2f(-1.0, 1.0, 1.0, 0.25, 0.25)
sgl.v3f_t2f( 1.0, 1.0, 1.0, 0.25, 0.0 ) sgl.v3f_t2f(1.0, 1.0, 1.0, 0.25, 0.0)
sgl.v3f_t2f( 1.0, 1.0, -1.0, 0.0 , 0.0 ) sgl.v3f_t2f(1.0, 1.0, -1.0, 0.0, 0.0)
sgl.end() sgl.end()
} }
/* /*
Cube vertex buffer with packed vertex formats for color and texture coords. Cube vertex buffer with packed vertex formats for color and texture coords.
Note that a vertex format which must be portable across all Note that a vertex format which must be portable across all
backends must only use the normalized integer formats backends must only use the normalized integer formats
(BYTE4N, UBYTE4N, SHORT2N, SHORT4N), which can be converted (BYTE4N, UBYTE4N, SHORT2N, SHORT4N), which can be converted
@ -248,115 +245,138 @@ fn cube_texture(r f32,g f32,b f32) {
*/ */
struct Vertex_t { struct Vertex_t {
x f32 x f32
y f32 y f32
z f32 z f32
color u32 color u32
// u u16
//u u16 // v u16
//v u16 u f32
u f32 v f32
v f32
} }
fn init_cube_glsl(mut app App) { fn init_cube_glsl(mut app App) {
/* cube vertex buffer */ // cube vertex buffer
//d := u16(32767/8) // for compatibility with D3D11, 32767 stand for 1 // d := u16(32767/8) // for compatibility with D3D11, 32767 stand for 1
d := f32(1.0) //0.05) d := f32(1.0) // 0.05)
c := u32(0xFFFFFF_FF) // color RGBA8 c := u32(0xFFFFFF_FF) // color RGBA8
vertices := [ vertices := [
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0}, Vertex_t{1.0, -1.0, -1.0, c, d, 0},
Vertex_t{ 1.0, -1.0, -1.0, c, d, 0}, Vertex_t{1.0, 1.0, -1.0, c, d, d},
Vertex_t{ 1.0, 1.0, -1.0, c, d, d}, Vertex_t{-1.0, 1.0, -1.0, c, 0, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, d}, Vertex_t{-1.0, -1.0, 1.0, c, 0, 0},
Vertex_t{1.0, -1.0, 1.0, c, d, 0},
Vertex_t{-1.0, -1.0, 1.0, c, 0, 0}, Vertex_t{1.0, 1.0, 1.0, c, d, d},
Vertex_t{ 1.0, -1.0, 1.0, c, d, 0}, Vertex_t{-1.0, 1.0, 1.0, c, 0, d},
Vertex_t{ 1.0, 1.0, 1.0, c, d, d}, Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, 1.0, c, 0, d}, Vertex_t{-1.0, 1.0, -1.0, c, d, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, d},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0}, Vertex_t{-1.0, -1.0, 1.0, c, 0, d},
Vertex_t{-1.0, 1.0, -1.0, c, d, 0}, Vertex_t{1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, d}, Vertex_t{1.0, 1.0, -1.0, c, d, 0},
Vertex_t{-1.0, -1.0, 1.0, c, 0, d}, Vertex_t{1.0, 1.0, 1.0, c, d, d},
Vertex_t{1.0, -1.0, 1.0, c, 0, d},
Vertex_t{ 1.0, -1.0, -1.0, c, 0, 0}, Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{ 1.0, 1.0, -1.0, c, d, 0}, Vertex_t{-1.0, -1.0, 1.0, c, d, 0},
Vertex_t{ 1.0, 1.0, 1.0, c, d, d}, Vertex_t{1.0, -1.0, 1.0, c, d, d},
Vertex_t{ 1.0, -1.0, 1.0, c, 0, d}, Vertex_t{1.0, -1.0, -1.0, c, 0, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0}, Vertex_t{-1.0, 1.0, 1.0, c, d, 0},
Vertex_t{-1.0, -1.0, 1.0, c, d, 0}, Vertex_t{1.0, 1.0, 1.0, c, d, d},
Vertex_t{ 1.0, -1.0, 1.0, c, d, d}, Vertex_t{1.0, 1.0, -1.0, c, 0, d},
Vertex_t{ 1.0, -1.0, -1.0, c, 0, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, 0},
Vertex_t{ 1.0, 1.0, 1.0, c, d, d},
Vertex_t{ 1.0, 1.0, -1.0, c, 0, d},
] ]
mut vert_buffer_desc := C.sg_buffer_desc{} mut vert_buffer_desc := C.sg_buffer_desc{}
unsafe {C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc))} unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
vert_buffer_desc.size = vertices.len * int(sizeof(Vertex_t)) vert_buffer_desc.size = vertices.len * int(sizeof(Vertex_t))
vert_buffer_desc.content = byteptr(vertices.data) vert_buffer_desc.content = byteptr(vertices.data)
vert_buffer_desc.@type = .vertexbuffer vert_buffer_desc.@type = .vertexbuffer
//vert_buffer_desc.usage = .immutable // vert_buffer_desc.usage = .immutable
vert_buffer_desc.label = "cube-vertices".str vert_buffer_desc.label = 'cube-vertices'.str
vbuf := gfx.make_buffer(&vert_buffer_desc) vbuf := gfx.make_buffer(&vert_buffer_desc)
/* create an index buffer for the cube */ // create an index buffer for the cube
indices := [ indices := [
u16(0), 1, 2, 0, 2, 3, u16(0),
6, 5, 4, 7, 6, 4, 1,
8, 9, 10, 8, 10, 11, 2,
14, 13, 12, 15, 14, 12, 0,
16, 17, 18, 16, 18, 19, 2,
22, 21, 20, 23, 22, 20 3,
6,
5,
4,
7,
6,
4,
8,
9,
10,
8,
10,
11,
14,
13,
12,
15,
14,
12,
16,
17,
18,
16,
18,
19,
22,
21,
20,
23,
22,
20,
] ]
mut index_buffer_desc := C.sg_buffer_desc{} mut index_buffer_desc := C.sg_buffer_desc{}
unsafe {C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc))} unsafe { C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc)) }
index_buffer_desc.size = indices.len * int(sizeof(u16)) index_buffer_desc.size = indices.len * int(sizeof(u16))
index_buffer_desc.content = byteptr(indices.data) index_buffer_desc.content = byteptr(indices.data)
index_buffer_desc.@type = .indexbuffer index_buffer_desc.@type = .indexbuffer
index_buffer_desc.label = "cube-indices".str index_buffer_desc.label = 'cube-indices'.str
ibuf := gfx.make_buffer(&index_buffer_desc) ibuf := gfx.make_buffer(&index_buffer_desc)
/* create shader */ // create shader
shader := gfx.make_shader(C.cube_shader_desc()) shader := gfx.make_shader(C.cube_shader_desc())
mut pipdesc := C.sg_pipeline_desc{} mut pipdesc := C.sg_pipeline_desc{}
unsafe {C.memset(&pipdesc, 0, sizeof(pipdesc))} unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t)) pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
// the constants [C.ATTR_vs_pos, C.ATTR_vs_color0, C.ATTR_vs_texcoord0] are generated bysokol-shdc // the constants [C.ATTR_vs_pos, C.ATTR_vs_color0, C.ATTR_vs_texcoord0] are generated bysokol-shdc
pipdesc.layout.attrs[C.ATTR_vs_pos ].format = .float3 // x,y,z as f32 pipdesc.layout.attrs[C.ATTR_vs_pos].format = .float3 // x,y,z as f32
pipdesc.layout.attrs[C.ATTR_vs_color0 ].format = .ubyte4n // color as u32 pipdesc.layout.attrs[C.ATTR_vs_color0].format = .ubyte4n // color as u32
pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .float2 // u,v as f32 pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .float2 // u,v as f32
//pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .short2n // u,v as u16 // pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .short2n // u,v as u16
pipdesc.shader = shader pipdesc.shader = shader
pipdesc.index_type = .uint16 pipdesc.index_type = .uint16
pipdesc.depth_stencil = C.sg_depth_stencil_state{ pipdesc.depth_stencil = C.sg_depth_stencil_state{
depth_write_enabled: true depth_write_enabled: true
depth_compare_func : gfx.CompareFunc(C.SG_COMPAREFUNC_LESS_EQUAL) depth_compare_func: gfx.CompareFunc(C.SG_COMPAREFUNC_LESS_EQUAL)
} }
pipdesc.rasterizer = C.sg_rasterizer_state { pipdesc.rasterizer = C.sg_rasterizer_state{
cull_mode: .back cull_mode: .back
} }
pipdesc.label = "glsl_shader pipeline".str pipdesc.label = 'glsl_shader pipeline'.str
app.cube_bind.vertex_buffers[0] = vbuf app.cube_bind.vertex_buffers[0] = vbuf
app.cube_bind.index_buffer = ibuf app.cube_bind.index_buffer = ibuf
app.cube_bind.fs_images[C.SLOT_tex] = app.texture app.cube_bind.fs_images[C.SLOT_tex] = app.texture
app.cube_pip_glsl = gfx.make_pipeline(&pipdesc) app.cube_pip_glsl = gfx.make_pipeline(&pipdesc)
println("GLSL init DONE!") println('GLSL init DONE!')
} }
fn draw_cube_glsl(app App){ fn draw_cube_glsl(app App) {
if app.init_flag == false { if app.init_flag == false {
return return
} }
@ -364,12 +384,12 @@ fn draw_cube_glsl(app App){
rot := [f32(app.mouse_y), f32(app.mouse_x)] rot := [f32(app.mouse_y), f32(app.mouse_x)]
ws := gg.window_size() ws := gg.window_size()
//ratio := f32(ws.width)/ws.height // ratio := f32(ws.width)/ws.height
dw := f32(ws.width/2) dw := f32(ws.width / 2)
dh := f32(ws.height/2) dh := f32(ws.height / 2)
tr_matrix := m4.calc_tr_matrices(dw, dh, rot[0], rot[1] ,2.0) tr_matrix := m4.calc_tr_matrices(dw, dh, rot[0], rot[1], 2.0)
gfx.apply_viewport(ws.width/2, 0, ws.width/2, ws.height/2, true) gfx.apply_viewport(ws.width / 2, 0, ws.width / 2, ws.height / 2, true)
// apply the pipline and bindings // apply the pipline and bindings
gfx.apply_pipeline(app.cube_pip_glsl) gfx.apply_pipeline(app.cube_pip_glsl)
@ -380,18 +400,19 @@ fn draw_cube_glsl(app App){
//*************** //***************
// passing the view matrix as uniform // passing the view matrix as uniform
// res is a 4x4 matrix of f32 thus: 4*16 byte of size // res is a 4x4 matrix of f32 thus: 4*16 byte of size
gfx.apply_uniforms(C.SG_SHADERSTAGE_VS, C.SLOT_vs_params, &tr_matrix, 4*16 ) gfx.apply_uniforms(C.SG_SHADERSTAGE_VS, C.SLOT_vs_params, &tr_matrix, 4 * 16)
// fs uniforms // fs uniforms
time_ticks := f32(time.ticks() - app.ticks) / 1000 time_ticks := f32(time.ticks() - app.ticks) / 1000
mut text_res := [ mut text_res := [
f32(512), 512, // x,y resolution to pass to FS f32(512),
time_ticks, // time as f32 512, /* x,y resolution to pass to FS */
0 // padding 4 Bytes == 1 f32 time_ticks, /* time as f32 */
0 /* padding 4 Bytes == 1 f32 */,
]! ]!
gfx.apply_uniforms(C.SG_SHADERSTAGE_FS, C.SLOT_fs_params, &text_res, 4*4 ) gfx.apply_uniforms(C.SG_SHADERSTAGE_FS, C.SLOT_fs_params, &text_res, 4 * 4)
gfx.draw(0, (3*2)*6, 1) gfx.draw(0, (3 * 2) * 6, 1)
gfx.end_pass() gfx.end_pass()
gfx.commit() gfx.commit()
} }
@ -411,20 +432,20 @@ fn draw_texture_cubes(app App) {
sgl.translate(0.0, 0.0, -12.0) sgl.translate(0.0, 0.0, -12.0)
sgl.rotate(sgl.rad(rot[0]), 1.0, 0.0, 0.0) sgl.rotate(sgl.rad(rot[0]), 1.0, 0.0, 0.0)
sgl.rotate(sgl.rad(rot[1]), 0.0, 1.0, 0.0) sgl.rotate(sgl.rad(rot[1]), 0.0, 1.0, 0.0)
cube_texture(1,1,1) cube_texture(1, 1, 1)
sgl.push_matrix() sgl.push_matrix()
sgl.translate(0.0, 0.0, 3.0) sgl.translate(0.0, 0.0, 3.0)
sgl.scale(0.5, 0.5, 0.5) sgl.scale(0.5, 0.5, 0.5)
sgl.rotate(-2.0 * sgl.rad(rot[0]), 1.0, 0.0, 0.0) sgl.rotate(-2.0 * sgl.rad(rot[0]), 1.0, 0.0, 0.0)
sgl.rotate(-2.0 * sgl.rad(rot[1]), 0.0, 1.0, 0.0) sgl.rotate(-2.0 * sgl.rad(rot[1]), 0.0, 1.0, 0.0)
cube_texture(1,1,1) cube_texture(1, 1, 1)
sgl.push_matrix() sgl.push_matrix()
sgl.translate(0.0, 0.0, 3.0) sgl.translate(0.0, 0.0, 3.0)
sgl.scale(0.5, 0.5, 0.5) sgl.scale(0.5, 0.5, 0.5)
sgl.rotate(-3.0 * sgl.rad(2*rot[0]), 1.0, 0.0, 0.0) sgl.rotate(-3.0 * sgl.rad(2 * rot[0]), 1.0, 0.0, 0.0)
sgl.rotate(3.0 * sgl.rad(2*rot[1]), 0.0, 0.0, 1.0) sgl.rotate(3.0 * sgl.rad(2 * rot[1]), 0.0, 0.0, 1.0)
cube_texture(1,1,1) cube_texture(1, 1, 1)
sgl.pop_matrix() sgl.pop_matrix()
sgl.pop_matrix() sgl.pop_matrix()
sgl.disable_texture() sgl.disable_texture()
@ -432,17 +453,17 @@ fn draw_texture_cubes(app App) {
fn frame(mut app App) { fn frame(mut app App) {
ws := gg.window_size() ws := gg.window_size()
ratio := f32(ws.width)/ws.height ratio := f32(ws.width) / ws.height
dw := ws.width dw := ws.width
dh := ws.height dh := ws.height
ww := int(dh/3) /* not a bug */ ww := int(dh / 3) // not a bug
hh := int(dh/3) hh := int(dh / 3)
x0 := int(f32(dw) * 0.05) x0 := int(f32(dw) * 0.05)
//x1 := dw/2 // x1 := dw/2
y0 := 0 y0 := 0
y1 := int(f32(dh) * 0.5) y1 := int(f32(dh) * 0.5)
//app.gg.begin() // app.gg.begin()
app.gg.begin() app.gg.begin()
sgl.defaults() sgl.defaults()
@ -456,14 +477,14 @@ fn frame(mut app App) {
draw_cubes(app) draw_cubes(app)
// textured cubed with viewport // textured cubed with viewport
sgl.viewport(0, int(dh/5), dw, int(dh*ratio), true) sgl.viewport(0, int(dh / 5), dw, int(dh * ratio), true)
draw_texture_cubes(app) draw_texture_cubes(app)
app.gg.end() app.gg.end()
// clear // clear
mut color_action := C.sg_color_attachment_action{ mut color_action := C.sg_color_attachment_action{
action: gfx.Action(C.SG_ACTION_DONTCARE) //C.SG_ACTION_CLEAR) action: gfx.Action(C.SG_ACTION_DONTCARE) // C.SG_ACTION_CLEAR)
} }
color_action.val[0] = 1 color_action.val[0] = 1
color_action.val[1] = 1 color_action.val[1] = 1
@ -476,9 +497,7 @@ fn frame(mut app App) {
// glsl cube // glsl cube
draw_cube_glsl(app) draw_cube_glsl(app)
app.frame_count++ app.frame_count++
} }
/****************************************************************************** /******************************************************************************
@ -487,8 +506,6 @@ fn frame(mut app App) {
* *
******************************************************************************/ ******************************************************************************/
fn my_init(mut app App) { fn my_init(mut app App) {
// set max vertices, // set max vertices,
// for a large number of the same type of object it is better use the instances!! // for a large number of the same type of object it is better use the instances!!
desc := sapp.create_desc() desc := sapp.create_desc()
@ -500,15 +517,15 @@ fn my_init(mut app App) {
// 3d pipeline // 3d pipeline
mut pipdesc := C.sg_pipeline_desc{} mut pipdesc := C.sg_pipeline_desc{}
unsafe {C.memset(&pipdesc, 0, sizeof(pipdesc))} unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
pipdesc.blend.enabled = true pipdesc.blend.enabled = true
pipdesc.blend.src_factor_rgb = gfx.BlendFactor(C.SG_BLENDFACTOR_SRC_ALPHA) pipdesc.blend.src_factor_rgb = gfx.BlendFactor(C.SG_BLENDFACTOR_SRC_ALPHA)
pipdesc.blend.dst_factor_rgb = gfx.BlendFactor(C.SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA) pipdesc.blend.dst_factor_rgb = gfx.BlendFactor(C.SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA)
pipdesc.depth_stencil = C.sg_depth_stencil_state{ pipdesc.depth_stencil = C.sg_depth_stencil_state{
depth_write_enabled: true depth_write_enabled: true
depth_compare_func : gfx.CompareFunc(C.SG_COMPAREFUNC_LESS_EQUAL) depth_compare_func: gfx.CompareFunc(C.SG_COMPAREFUNC_LESS_EQUAL)
} }
pipdesc.rasterizer = C.sg_rasterizer_state { pipdesc.rasterizer = C.sg_rasterizer_state{
cull_mode: .back cull_mode: .back
} }
app.pip_3d = sgl.make_pipeline(&pipdesc) app.pip_3d = sgl.make_pipeline(&pipdesc)
@ -517,37 +534,37 @@ fn my_init(mut app App) {
w := 256 w := 256
h := 256 h := 256
sz := w * h * 4 sz := w * h * 4
tmp_txt := unsafe{ malloc(sz) } tmp_txt := unsafe { malloc(sz) }
mut i := 0 mut i := 0
for i < sz { for i < sz {
unsafe { unsafe {
y := (i >> 0x8) >> 5 // 8 cell y := (i >> 0x8) >> 5 // 8 cell
x := (i & 0xFF) >> 5 // 8 cell x := (i & 0xFF) >> 5 // 8 cell
// upper left corner // upper left corner
if x==0 && y==0 { if x == 0 && y == 0 {
tmp_txt[i ] = byte(0xFF) tmp_txt[i] = byte(0xFF)
tmp_txt[i+1] = byte(0) tmp_txt[i + 1] = byte(0)
tmp_txt[i+2] = byte(0) tmp_txt[i + 2] = byte(0)
tmp_txt[i+3] = byte(0xFF) tmp_txt[i + 3] = byte(0xFF)
} }
// low right corner // low right corner
else if x==7 && y==7 { else if x == 7 && y == 7 {
tmp_txt[i ] = byte(0) tmp_txt[i] = byte(0)
tmp_txt[i+1] = byte(0xFF) tmp_txt[i + 1] = byte(0xFF)
tmp_txt[i+2] = byte(0) tmp_txt[i + 2] = byte(0)
tmp_txt[i+3] = byte(0xFF) tmp_txt[i + 3] = byte(0xFF)
} else { } else {
col := if ((x+y) & 1) == 1 {0xFF} else {128} col := if ((x + y) & 1) == 1 { 0xFF } else { 128 }
tmp_txt[i ] = byte(col) // red tmp_txt[i] = byte(col) // red
tmp_txt[i+1] = byte(col) // green tmp_txt[i + 1] = byte(col) // green
tmp_txt[i+2] = byte(col) // blue tmp_txt[i + 2] = byte(col) // blue
tmp_txt[i+3] = byte(0xFF) // alpha tmp_txt[i + 3] = byte(0xFF) // alpha
} }
i += 4 i += 4
} }
} }
app.texture = create_texture(w, h, tmp_txt) app.texture = create_texture(w, h, tmp_txt)
unsafe{ free(tmp_txt) } unsafe { free(tmp_txt) }
// glsl // glsl
init_cube_glsl(mut app) init_cube_glsl(mut app)
@ -563,7 +580,7 @@ fn cleanup(mut app App) {
* event * event
* *
******************************************************************************/ ******************************************************************************/
fn my_event_manager(mut ev sapp.Event, mut app App) { fn my_event_manager(mut ev gg.Event, mut app App) {
if ev.typ == .mouse_move { if ev.typ == .mouse_move {
app.mouse_x = int(ev.mouse_x) app.mouse_x = int(ev.mouse_x)
app.mouse_y = int(ev.mouse_y) app.mouse_y = int(ev.mouse_y)
@ -583,17 +600,17 @@ fn my_event_manager(mut ev sapp.Event, mut app App) {
* *
******************************************************************************/ ******************************************************************************/
[console] [console]
fn main(){ fn main() {
// App init // App init
mut app := &App{ mut app := &App{
gg: 0 gg: 0
} }
mut a := [5]int{} mut a := [5]int{}
a[0]=2 a[0] = 2
println(a) println(a)
app.gg = gg.new_context({ app.gg = gg.new_context(
width: win_width width: win_width
height: win_height height: win_height
use_ortho: true // This is needed for 2D drawing use_ortho: true // This is needed for 2D drawing
@ -605,7 +622,7 @@ fn main(){
init_fn: my_init init_fn: my_init
cleanup_fn: cleanup cleanup_fn: cleanup
event_fn: my_event_manager event_fn: my_event_manager
}) )
app.ticks = time.ticks() app.ticks = time.ticks()
app.gg.run() app.gg.run()